Re: [CH] Dishsoap in bug spary
Brent Thompson (brent@hplbct.hpl.hp.com)
Fri, 21 May 1999 08:05:27 -0700
> Another aphid question: Do they come in various colors?
Yes. There are many species of aphids. Some are green, some are
yellowish, some are black, some look silvery, etc.
If you are lucky enough to see a lot of relatively spherical-looking,
tan-colored aphids with a little hole cut in the back of each one (and
those aphids are hard [and dry], not soft), this means you have a bunch of
aphid-predator wasps around, and if so you shouldn't spray anything at all
to kill the aphids -- you want to encourage as mush as possible the
population explosion of that predatory wasp, and especially, you don't want
to kill any of them. Once these predatory wasps are around in force, they
clean up aphid problems very rapidly.
--- Brent